This paper presents a method for estimating the residual-strength of welded pressure vessel made of HSLA steel which contains a surface axial crack. In order to analyze the behavior of the structure, a set of specimens were extracted from the welded plates using the same welding procedure as used for welding of the vessel. Before the fatigue precracking, the notches were positioned in parent material, heat-affected zone and weld metal of standard bend specimens. The J-integral resistance curve method for residual strength prediction comprises the following steps: 1. Obtaining of root J(R) resistance curves for the pressure vessel material using convenient specimens; 2. Obtaining root J crack driving force curves for the investigated structure for different crack sizes and different levels of applied stresses by applying the appropriate model of plasticity (Dugdale model); 3. Determination of the instability point as the tangency point between the crack driving force curve and the resis...tance curve. J-resistance curve of welded joint constituents were determined at -40 degrees C using a single specimen compliance procedure.
TY - JOUR
AU - Milović, Ljubica
AU - Petrovski, Blagoj
AU - Vuherer, Tomaz
PY - 2019
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4142
AB - This paper presents a method for estimating the residual-strength of welded pressure vessel made of HSLA steel which contains a surface axial crack. In order to analyze the behavior of the structure, a set of specimens were extracted from the welded plates using the same welding procedure as used for welding of the vessel. Before the fatigue precracking, the notches were positioned in parent material, heat-affected zone and weld metal of standard bend specimens. The J-integral resistance curve method for residual strength prediction comprises the following steps: 1. Obtaining of root J(R) resistance curves for the pressure vessel material using convenient specimens; 2. Obtaining root J crack driving force curves for the investigated structure for different crack sizes and different levels of applied stresses by applying the appropriate model of plasticity (Dugdale model); 3. Determination of the instability point as the tangency point between the crack driving force curve and the resistance curve. J-resistance curve of welded joint constituents were determined at -40 degrees C using a single specimen compliance procedure.
PB - Pergamon-Elsevier Science Ltd, Oxford
T2 - Engineering Failure Analysis
T1 - Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature
VL - 106
DO - 10.1016/j.engfailanal.2019.104167
ER -
@article{
author = "Milović, Ljubica and Petrovski, Blagoj and Vuherer, Tomaz",
year = "2019",
abstract = "This paper presents a method for estimating the residual-strength of welded pressure vessel made of HSLA steel which contains a surface axial crack. In order to analyze the behavior of the structure, a set of specimens were extracted from the welded plates using the same welding procedure as used for welding of the vessel. Before the fatigue precracking, the notches were positioned in parent material, heat-affected zone and weld metal of standard bend specimens. The J-integral resistance curve method for residual strength prediction comprises the following steps: 1. Obtaining of root J(R) resistance curves for the pressure vessel material using convenient specimens; 2. Obtaining root J crack driving force curves for the investigated structure for different crack sizes and different levels of applied stresses by applying the appropriate model of plasticity (Dugdale model); 3. Determination of the instability point as the tangency point between the crack driving force curve and the resistance curve. J-resistance curve of welded joint constituents were determined at -40 degrees C using a single specimen compliance procedure.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature",
volume = "106",
doi = "10.1016/j.engfailanal.2019.104167"
}
Milović, L., Petrovski, B.,& Vuherer, T.. (2019). Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 106.
https://doi.org/10.1016/j.engfailanal.2019.104167
Milović L, Petrovski B, Vuherer T. Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature. in Engineering Failure Analysis. 2019;106.
doi:10.1016/j.engfailanal.2019.104167 .
Milović, Ljubica, Petrovski, Blagoj, Vuherer, Tomaz, "Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature" in Engineering Failure Analysis, 106 (2019),
https://doi.org/10.1016/j.engfailanal.2019.104167 . .
